CN202081994U - Automobile engine piston - Google Patents
Automobile engine piston Download PDFInfo
- Publication number
- CN202081994U CN202081994U CN2011201943777U CN201120194377U CN202081994U CN 202081994 U CN202081994 U CN 202081994U CN 2011201943777 U CN2011201943777 U CN 2011201943777U CN 201120194377 U CN201120194377 U CN 201120194377U CN 202081994 U CN202081994 U CN 202081994U
- Authority
- CN
- China
- Prior art keywords
- piston
- pin hole
- shaft sleeve
- head
- piston head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an automobile engine piston, comprising a piston head and a piston skirt, wherein the top part of the piston head is a piston top which is provided with a groove; the side part of the piston head is provided with a ring groove; a piston pin seat is arranged under the piston head, and is internally provided with a piston pin hole; the piston pin hole penetrates through the piston skirt and is internally provided with a shaft sleeve; a thrust step is arranged at an outlet of the piston pin hole; the outer side of the shaft sleeve abuts against the thrust step; and the inner side of the shaft sleeve is matched with an automobile piston connecting rod part. In the automobile engine piston disclosed by the utility model, the outer side of the piston pin hole is provided with the thrust step, and after the installation of the piston is finished, the opened end of the outer side of the shaft sleeve abuts against the thrust step to limit the shaft sleeve and effectively prevent the shaft sleeve from slipping out of the piston pin hole, so that the engine accident caused by outward impact of the piston shaft sleeve on an automobile engine cylinder body is prevented.
Description
Technical field
The utility model relates to motor and makes the field, is specifically related to a kind of motor car engine piston.
Background technique
The motor car engine piston is one of the vital part of the middle work of motor car engine, and the function of piston is to bear gas pressure, and passes to connecting rod by wrist pin and order about crankshaft rotating.General piston head of the piston of motor car engine motor and piston skirt, piston head comprises piston head, and the sidepiece of piston head is provided with some annular grooves, and the below of piston head is provided with piston pin boss, piston pin boss comprises the piston pin hole of laying for wrist pin, is provided with axle sleeve in described piston pin hole and the wrist pin.This motor car engine piston when pistons work, axle sleeve easily from piston outwards slippage come out, influence work.
Summary of the invention
The purpose of this utility model is: at the deficiencies in the prior art, the utility model provides a kind of axle sleeve fixation, the motor car engine piston of stable working.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme: a kind of motor car engine piston, comprise piston head and piston skirt, the top of piston head is a piston head, piston head is provided with groove, the sidepiece of described piston head is provided with annular groove, described piston head below is provided with piston pin boss, be provided with piston pin hole in the described piston pin boss, described piston pin hole run through piston skirt, be provided with axle sleeve in the piston pin hole, the outlet port of described piston pin hole is provided with the thrust step, the outside of described axle sleeve and thrust step offset, and setting matches with the piston of automobile linkage component in the inboard of axle sleeve.
As preferably, described thrust step is the step of annular.After adopting above-mentioned preferred version, what motor car engine piston sleeve of the present utility model can be more firm is installed in the piston pin hole, avoids coming off of axle sleeve.
As preferably, the longitudinal section of described top groove becomes the ω type.After adopting above-mentioned preferred version, the top groove of piston head forms the firing chamber of piston, and the firing chamber of this shape can make air and fuel oil fully mix, thus fully burning.
As preferably, described piston head and piston skirt are made by alloy forging.After adopting above-mentioned preferred version, this alloy structure can improve the wear resistance of annular groove and piston skirt and the ablative at top.
The arranged outside thrust step of the piston pin hole of motor car engine piston of the present utility model, after the piston installation, the outer openings end and the thrust step of axle sleeve offset, spacing to axle sleeve, effectively avoid axle sleeve outside slippage from piston pin hole to come out, thereby prevent from outwards to clash into the motor accident that automobile engine cylinder-body causes because of piston sleeve.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
Embodiment
As depicted in figs. 1 and 2, specific embodiment of the utility model is a kind of motor car engine piston, comprises piston head 1 and piston skirt 2, and the top of piston head 1 is a piston head 11, and piston head 11 is provided with groove 111, and the longitudinal section of the groove 111 at top becomes the ω type.The sidepiece of piston head 1 is provided with annular groove 12, piston head 1 below is provided with piston pin boss 3, be provided with piston pin hole 31 in the piston pin boss 3, piston pin hole 31 run through piston skirt 2, be provided with axle sleeve 4 in the piston pin hole 31, the outlet port of piston pin hole 31 is provided with thrust step 32, and thrust step 32 is the step of annular.The outside of axle sleeve 4 and thrust step 32 offset, and form spacing cooperation.Setting matches with the piston of automobile linkage component in the inboard of axle sleeve 4.The piston head 1 of motor car engine piston of the present utility model and piston skirt 2 are made by alloy forging.
The working principle of the motor car engine piston of the working principle of motor car engine piston of the present utility model and prior art is basic identical, difference is: the arranged outside thrust step 32 of the piston pin hole 31 of motor car engine piston of the present utility model, after the piston installation, the outer openings end and the thrust step 32 of axle sleeve 4 offset, spacing to axle sleeve 4, effectively avoid axle sleeve 4 outside slippage from piston pin hole 31 to come out.
Claims (4)
1. motor car engine piston, comprise piston head and piston skirt, the top of piston head is a piston head, piston head is provided with groove, the sidepiece of described piston head is provided with annular groove, described piston head below is provided with piston pin boss, be provided with piston pin hole in the described piston pin boss, described piston pin hole run through piston skirt, be provided with axle sleeve in the piston pin hole, it is characterized in that: the outlet port of described piston pin hole is provided with the thrust step, and the outside of described axle sleeve and thrust step offset, form spacing cooperation, setting matches with the piston of automobile linkage component in the inboard of axle sleeve.
2. motor car engine piston according to claim 1 is characterized in that: described thrust step is the step of annular.
3. motor car engine piston according to claim 1 is characterized in that: the longitudinal section of described top groove becomes the ω type.
4. motor car engine piston according to claim 1 is characterized in that: described piston head and piston skirt are made by alloy forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201943777U CN202081994U (en) | 2011-06-10 | 2011-06-10 | Automobile engine piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201943777U CN202081994U (en) | 2011-06-10 | 2011-06-10 | Automobile engine piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081994U true CN202081994U (en) | 2011-12-21 |
Family
ID=45342626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201943777U Expired - Fee Related CN202081994U (en) | 2011-06-10 | 2011-06-10 | Automobile engine piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202081994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425281A (en) * | 2015-08-04 | 2017-02-22 | 强哲菲 | Piston copper bush installation method and installation device |
| CN106425280A (en) * | 2015-08-04 | 2017-02-22 | 强哲菲 | Piston, and piston copper bush installation method and installation device |
-
2011
- 2011-06-10 CN CN2011201943777U patent/CN202081994U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425281A (en) * | 2015-08-04 | 2017-02-22 | 强哲菲 | Piston copper bush installation method and installation device |
| CN106425280A (en) * | 2015-08-04 | 2017-02-22 | 强哲菲 | Piston, and piston copper bush installation method and installation device |
| CN106425281B (en) * | 2015-08-04 | 2018-08-31 | 强哲菲 | Piston copper cover installation method and installation equipment |
| CN106425280B (en) * | 2015-08-04 | 2018-08-31 | 强哲菲 | Piston and piston copper cover installation method and installation equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007039819A3 (en) | Piston having improved cooling characteristics | |
| JP2016510097A5 (en) | ||
| WO2010017808A3 (en) | Piston for an internal combustion engine | |
| CN202081994U (en) | Automobile engine piston | |
| CN102168715A (en) | Connecting rod of diesel engine | |
| CN204704008U (en) | Engine piston connecting rod assembly | |
| CN105179100A (en) | Piston and connecting rod assembly | |
| CN203420794U (en) | Piston structure for lubricating connecting rod and pin | |
| CN202081992U (en) | Piston for automobile engine | |
| CN102168714B (en) | Connecting rod of diesel engine | |
| CN202048088U (en) | Connecting rod of diesel | |
| CN202081995U (en) | Piston for automobile engine | |
| CN203035735U (en) | Connecting rod for diesel engine | |
| CN202894701U (en) | Automobile clutch power-assisted cylinder oil seal installation tool | |
| CN202883142U (en) | Hinged type piston | |
| CN105247197A (en) | Piston for a combustion engine | |
| CN104302902A (en) | Piston of internal combustion engine | |
| CN101289948B (en) | Double oil passage lubrication system for engine | |
| CN105171394A (en) | Assembling and disassembling methods for engine body and crank and connecting rod mechanism of engine and assembling and disassembling tool | |
| CN106930855A (en) | A kind of piston | |
| CN204113473U (en) | Piston of automobile engine assembly, motor car engine and automobile | |
| CN204783310U (en) | Assembly of piston -connecting rod | |
| CN204784140U (en) | Novel syllogic connecting rod | |
| CN203297316U (en) | Automobile engine driving shaft | |
| CN203296948U (en) | Gasoline engine piston capable of preventing excessive abrasion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140610 |